Date Added: Jul 2009
This paper proposes a classification of different clients of Cloud Computing into the groups of hardware and software clients. Each one of these groups will be further subdivided in 3 classes. In a second step, one analyzes two specific problems of cloud clients, namely how to discover a service, and how to decide, which service to use. Each of these problems is far from being trivial and could be essential for the future success of cloud computing.